Force-feed system of continuously treating boiler water



July 20 1926. 1,592,893

c. T. M GILL FORCE FEED SYSTEM OF CONTINUOUSLY'TREATING BOILER WATERFiled April '18 1925 gwuwntoz C/wsfisr Z'Ma Gill.

Patented July 20, 1926.

UNITED STATES PATENT OFFICE.

CHESTER THOMAS MQGILL, OF ELGIN, ILLINOIS, ASSIGNOR TO REITER 00., OIELGIN, ILLINOIS, A CORPORATION OF ILLINOIS.

FORCE-FEED SYSTEM OF CONTINUOUSLY TREATING BOILER WATER.

Application filed April 18, 1925. Serial No. 24,231.

This invention relates to improvements in a force feed system forcontinuously treating boiler water.

An object of this invention is to provide means for continuouslydelivering treatment to steam boilers while in operation.

In the drawing the single figure illustrates an elevational view inassembled form of the force feed device, with a part broken away.

Numerals l and 2 designate the steam and water supply lines leading intoa mixing tank 5, having a cover 6, while 4 represents the mixing tubeextending from supply lines 1 and 2.

The plunger pump 7 is supplied with a base plate 8, while numerals 9 and10 designate links adjustably united by pivot 11 and serving to connectthe pump 7 to the boiler feed pump. The packing gland for the pump isshown at 12, while 13 designates the discharge line connection from thetreatment pump 7, and 14 the pump plunger.

The suction line to the treatment pump 7 is designated by the numeral15, while 16 represents the check valve connection'to the pump, and 17the vertical check valve on the discharge line to the boiler connection19, while 20 designates the valvein said connection.

In operation the valve 3 on the suction to the pump 7 is closed, whilethe cover 6 is removed from the tank 5 and the chemicals put in thetank. Water is then let into the tank for mixing the chemicals throughvalve 2 to the desired height. Valve 2 is then closed and steam turnedin through valve ,1. This thoroughly agitates and mixes the chemicals,and at the same time operates to fill. the tank with condensing water.

Supply steam and water valves are then closed, and valve 3 opened,thereby allowing liquid to be drawn or to flow through valve 3 and pipe15 to plunger pump 7. through valve 16. The pump 7 being in operation byreason of having connecting rod 10 attached to the regular boiler feedpump B, will discharge or force the liquid through the vertical checkvalve 17 and pipe 19 to the point of delivery to the boiler A. It beingunderstood thatrod 10 is connected to some moving part of the mainboiler feed pump, the speed of the treatment pump depends on the speedof the boiler feed pump.

The stroke of the pump, for instance an Elgin treatment pump, isadjusted so that there will be a proper quantity of chemicalized waterdischarged to the boiler with the feed water to soften the boiler water,and change the solids from a solution to a suspension, or from asolubleto an insoluble form, in which condition they are carried with theboiler water by circulation through that portion of the Elgin systemthat precipitates and settles them in the precipitator where they can beblown out to the sewer, and the purified water will be returned back tothe boiler free of any scale forming matter, and at any degree ofhardness desired.

The above mixing tank is usually located in the engine room in closeproximity to the boiler feed treatment pump.

Without in any manner departing from the spirit of this invention, theapparatus described and claimed herewith may be adapted to any suitablesystem for feeding treatment to boiler water.

What I claim is 1. The combination with a boiler structure having a feedpump provided with actuating means, and a supply line leading from saidpump to the boiler, of a treatment mixing tank, means for moving thetreatment from said tank,-aline connecting said means to the boiler, andmeans adjustably connecting said moving means to the pump operatingmeans for actuating the former from the latter.

2. In an apparatus of the class described. the combination of atreatment tank, steam and water supply lines, a tube extending

